Alarm-lock



(No Model.) 2 SheetsSheet 1.

S. G. WOLPEV ALARM LOOK. No. 582,711.

Patented May'18, 1897.

M V! r 1% W N, 16 88 Z w i (No Model.) 2 Sheets-Sheet 2.

S. 0. WOLFE.

ALARM'LOGK.

No. 582,711. Patented May 18, 1897.

l Jame/12 0i, fl zfmzsses. I a W NITE SIMON C. WOLFE, OF ElGHTY-FOUR,PENNSYLVANIA.

ALARM-LOCK.

SPECIFICATION forming part of Letters Patent No. 582,711, dated May 18,1897.

Application filed March 12, 1896.

To all whom it may concern.-

Be it known that I, SIMON O. WOLFE, acitizen of the United States,residing at Eighty- Four, in the county of Washington and State ofPennsylvania, have invented an Improved Combination Burglar-Alarm Look,of which the following is a clear and exact specification, such as willenable others skilled in the art to which it appertains to make and usethe same.

My invention relates to an improved combination burglar-alarm lock; andthe object is to provide a lock which will give an alarm by exploding acartridge if the key is turned or the door forced or pried in any way.

My invention consists of a suitable lockcase provided with a combinationlocking device and mechanism connected therewith which operates a hammeror equivalent for exploding a cartridge. A detailed description of myinvention will appear hereinafter.

Reference being had to the accompanying drawings, Figure l is a sideelevation of my improved lock, showing the combin ation-dial in detail.Fig. 2 is a central vertical sectional view of the same, showing theinterior mechanism in its normal position, full lines, and the parts inposition ready for action, dotted lines. Fig. 3 is a side elevation indetail of the trip for releasing the hammer in case the door is forcedor pried. Fig. 4 is a perspective View of the tension device for holdingthe main-bolt in the locked or unlocked position. Fig. 5 is a sideelevation of the device used in throwing the mechanism in or out ofgear. Fig. 6 is a side elevation in detail of the main-bolt trip andlevers used, showing more clearly the manner in which the alarm isfired.

I will now describe my invention, reference being had to theaccompanying drawings, in which- A indicates the case containing theworking parts.

B is the main locking-bolt, which projects through a slot ct in the endof the case A in the usual manner. This bolt is provided at its innerend with a hole ct, into which a shoulder b is fitted. This shoulder bis on the end of an arm I), which runs upward to the top of the case,thence backward along the top at a point near the end of said case,

Serial No. 582,972. (No model.)

. where it engages the end of a bolt or equivalent o. This bolt 0 isadapted to be moved laterally into or out of contact with the said armZ), the purpose of which is to throw the mechanism in or out of gear, aswill be more fully described hereinafter.

The shoulder b is held in position by a pin or screw 1), which passespartly through the bolt B and engages a groove 0, thus preventing theshoulder from being pulled out of said bolt. The under side of bolt B isprovided with a notch or recess d, which is adapted to receive the key 0for looking or unlocking the bolt B. The upper side of the bolt B isprovided with notches d for engaging a tooth 6, formed on an arm orlevere, the purpose of which is to hold the bolt B in the locked orunlocked position. The bolt B is also provided at its inner end withaslot or groove 6, which is adapted to slide longitudinally on a pin 6,the purpose of said groove and pin being to keep the end of the bolt 13in its proper position.

The arm or lever e is pivoted in the case at f and is provided withaspring f, which spring has a tendency to keep the tooth in contact withthe notches d. The spring f passes upward and engages a lug orprojection g, formed on thelatch-bolt D. The latchbolt D is of the usualconstruction.

A spring 71 is secured to the case at h. This spring runs backward andrests at its outer end in a recess h", formed in the arm or lever Z),and acts to throw the said arm or lever downward.

A combination-lock E is secured to the case A and is of any desiredconstruction.

A lever 2' is pivoted to a dog 1', which engages with a hammer G. Thesaid dog 1" is pivoted to the case at 2". The lever 11 is provided witha lug or projection i, which is adapted to enter the recesses j, formedin the combination-disks. The upper end of the lever iis adapted toenter a recess j in the lever b when the mechanism is thrown in gear. Aspring is pivoted at 70 and is adapted to exert tension on said dog 71to throw it into contact with the hammer G. This spring passes aroundthe disks and upward under the bolt 0 to hold it in position.

The hammer G is pivoted in the case at Z.

A hole Z is formed in the outer end of the hannner to receive acartridge of any desired caliber.

A heavy solid corner at is cast or otherwise secured in the case, theobject of which is for the hammer to strike against for firing orexploding a cartridge.

A spring m is secured in the case between the outer wall and theauxiliary wall it. The outer end of this spring bears against aprojection n on the hammer, the purpose being to throw the hammer downwhen it has been released to explode the cartridge. The auxiliary wallit also acts as a protector to the mechanism back of the keyhole, thuspreventing the same from being tampered with from said keyhole.

A trip 0 is pivoted at o in a standard or support 0, one end of whichturns down against the side of the dog i, the other end resting on themain lock-bolt B, the purpose of this trip 0 being to release the dog 1thus throwing the hammer when the door has been forced or pried.

The operation is as follows: \Vhen the bolt 0 is pulled out, as shown inthe dotted lines, and the main lock-bolt B is turned into the lockedposition and the hammer cooked or set, the lock proper is in a positionready to be fired either by turning the key or forcing or prying thedoor. If the key is turned, it will carry the main lock-bolt B back, asalso the arm or lever Z). The lever 2', being in connection with thesaid arm or lover I) by means of resting in the recess of j, will alsobe pushed back. The combination not being in the open position, the lugor projection i will press against the disk and throw the lower end ofsaid lever i inward toward the main bolt B, as also the upper end of thedog 1'", thus throwing the dog proper out of e11- gagement with thehammer G, when said hammer will be released and forced down by thespring 771, exploding the cartridge. It the door is forced or pried, thelock-bolt 13 will press against the keeper on the jamb of thedoor-frame, which movement will throw the opposite end of said boltinward against the trip 0, which will cause the opposite end 1) to havea downward and inward movement which will crowd the dog 2" back andrelease the hammer G, causing the cartridge to be fired, as beforestated.

The hammer may be left set, as shown in dotted lines, without releasingthe same by simply pushing the bolt c into the position shown in fulllines, or the house may be entered from the outside without firing thecartridge if the person wishing to enter understands the combination.

\Vhen entering by means of the combination, the dial II is turned to theright and left to the required 11 u mbers, when the disks will bebrought into the position shown at j in Fig. 2. This will allow the lugor projection i" to enter the recesses in said disks, when the lever iand lug i, with the arm orleverb and main lock-bolt B, can be movedbackward by means of the key C, thus allowing entrance to the housewithout giving any alarm.

Having described my invention, what I claim is i 1. An improvedcombination alarm-lock, consisting of a suitable case provided with acombination device which adapts the lock proper to be unlocked from theoutside or inside without firing the alarm, said device consisting of acombination-lock, a lever having a lug or projection adapted to enterrecesses in the disks of said combination-lock, an arm pivotally securedto the locking-bolt of the lock proper and adapted to engage with saidlever, and an auxiliary wall for protecting the combination-lock, dog,trip, levers and springs, a bolt for throwing the mechanism in or out ofgear, and a bolt having a lateral movement for firing the alarm bypressure, in combination with a hammer for receiving a cartridge,substantially as shown and described.

2. An im proy'ed combination bu rglar-alarm lock, consisting of asuitable case provided with a locking-bolt, an arm or lever connectedwith said bolt and adapted to engage the end of a lever having a lug orprojection, said lever being pivoted to a dog for engaging a hammer anda trip movably secured in or to a support and adapted to engage saiddog, a lever and spring for holding the same in con tact with thelocking-bolt, a bolt for throwing the mechanism. in or out of gear and acombination device consisting of permutationdisks provided with recessesto be engaged by the said lug or projection, in connection with saidmechanism for unlocking the lock proper from the outside or insidewithout firing the alarm, substantially as shown and described.

In testimony whereof I have hereunto set my hand this llth day of March,1896.

SIMON C. \VOLFE.

Witnesses:

.T. .llowann BLAIR, .l. G. MCGUFFIE.

